1960s

The 1960s, like the 1950s before it, was a time of peace in the wizarding world, Gellert Grindelwald having long been defeated by this point; however, because of this peace, no one in the wizarding world was prepared for Lord Voldemort's new war. The Marauders, the Evans sisters and Severus Snape were all born around 1960.

1968: Nobby Leach resigns from the office of Minister for Magic, following a mysterious ilness (conspiracy theories abound; Abraxas Malfoy is believed to have led the shady plot to have him leave the post prematurely). Eugenia Jenkins becomes the new Minister.[3]

↑Molly was born on 30 October 1949, and Arthur was born on 6th February 1950, making them both elegible for Sorting on 1 September, 1961. As well as this, Molly says that the Fat Lady once scolded her for staying out so late, meaning that she was in Gryffindor.

↑Harry Potter and the Half-Blood Prince (Chapter 4, "Horace Slughorn"). Slughorn mentions that Cresswell was in the year after Harry's mother Lily at Hogwarts. Chapter 16 of Deathly Hallows establishes that Lily was born in January of 1960, meaning she began her first year in September of 1971; thus Cresswell began in September of 1972, meaning he had to have turned 11 by that time, putting his date of birth sometime before 1 September in 1961.